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General Description
The DS4412 contains two I2C adjustable-current DACs
that are each capable of sinking or sourcing current. Each
output has 15 sink and 15 source settings that are pro-
grammed by I2C interface. The full-scale range and step
size of each output is determined by an external resistor
that can adjust the output current over a 4:1 range.
The output pins, OUT0 and OUT1, power-up in a high-
impedance state.
Applications
Power-Supply Adjustment
Power-Supply Margining
Adjustable Current Sink or Source
Features
Two Current DACs
Full-Scale Current 500A to 2mA
Full-Scale Range for Each DAC Determined by
External Resistors
15 Settings Each for Sink and Source Modes
I2C-Compatible Serial Interface
Low Cost
Small Package (8-Pin SOP)
-40°C to +85°C Temperature Range
2.7V to 5.5V Operation
DS4412
Dual-Channel, I2C Adjustable
Sink/Source Current DAC
DC-DC
CONVERTER
FB
OUT
SDA
SCL
OUT0
OUT1
GND
RFS0
RFS1
4.7k
Ω
4.7k
Ω
VCC
VOUT0
FS0
FS1
R0B
R0A
DC-DC
CONVERTER
FB
OUT
VOUT1
R1B
R1A
DS4412
Typical Operating Circuit
Ordering Information
Rev 1; 10/08
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
+
Denotes a lead-free/RoHS-compliant package.
T&R = Tape and reel.
PART
TEMP RANGE
PIN-PACKAGE
DS4412U+
-40°C to +85°C
8 μSOP
DS4412U+T&R
-40°C to +85°C
8 μSOP
1
2
3
4
8
7
6
5
VCC
OUT1
OUT0
FS0
GND
FS1
SCL
SDA
μSOP
TOP VIEW
+
DS4412
Pin Configuration
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DS4412U+T&R 功能描述:数模转换器- DAC 2 Ch I2C Adj Sink/Source Current RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
DS4412U+TR 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel, I2C Adjustable Sink/Source Current DAC
DS4412UR 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel, I2C Adjustable Sink/Source Current DAC
DS4412UT 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel, I2C Adjustable Sink/Source Current DAC
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